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. 1978 May;20(2):375–380. doi: 10.1128/iai.20.2.375-380.1978

Production and partial purification of Salmonella enterotoxin.

D M Sedlock, L R Koupal, R H Deibel
PMCID: PMC421865  PMID: 352941

Abstract

By using a strain of Salmonella typhimurium, we detected the presence of an enterotoxin, as determined by the rabbit ileal loop assay, in various complex and defined media. The enterotoxin was concentrated by ultrafiltration of culture supernatant fluids and eluted in and adjacent to the void volume of a Sephadex G-100 column. This suggested that the enterotoxic factor was of a relatively high molecular weight, and additional evidence indicated it was heterogeneous in size. Further chromatography, using a diethylaminoethyl-cellulose anion exchanger, facilitated at least a 50-fold purification of the Salmonella enterotoxin.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Alderete J. F., Robertson D. C. Nutrition and enterotoxin synthesis by enterotoxigenic strains of Escherichia coli: defined medium for production of heat-stable enterotoxin. Infect Immun. 1977 Mar;15(3):781–788. doi: 10.1128/iai.15.3.781-788.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Alderete J. F., Robertson D. C. Repression of heat-stable enterotoxin synthesis in enterotoxigenic Escherichia coli. Infect Immun. 1977 Sep;17(3):629–633. doi: 10.1128/iai.17.3.629-633.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Callahan L. T., 3rd, Richardson S. H. Biochemistry of Vibrio cholerae virulence. 3. Nutritional requirements for toxin production and the effects of pH on toxin elaboration in chemically defined media. Infect Immun. 1973 Apr;7(4):567–572. doi: 10.1128/iai.7.4.567-572.1973. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Evans D. G., Evans D. J., Jr, Pierce N. F. Differences in the response of rabbit small intestine to heat-labile and heat-stable enterotoxins of Escherichia coli. Infect Immun. 1973 Jun;7(6):873–880. doi: 10.1128/iai.7.6.873-880.1973. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Evans D. J., Evans D. G., Gorbach S. L. Polymyxin B-Induced Release of Low-Molecular-Weight, Heat-Labile Enterotoxin from Escherichia coli. Infect Immun. 1974 Nov;10(5):1010–1017. doi: 10.1128/iai.10.5.1010-1017.1974. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Giannella R. A., Formal S. B., Dammin G. J., Collins H. Pathogenesis of salmonellosis. Studies of fluid secretion, mucosal invasion, and morphologic reaction in the rabbit ileum. J Clin Invest. 1973 Feb;52(2):441–453. doi: 10.1172/JCI107201. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Giannella R. A., Gots R. E., Charney A. N., Greenough W. B., 3rd, Formal S. B. Pathogenesis of Salmonella-mediated intestinal fluid secretion. Activation of adenylate cyclase and inhibition by indomethacin. Gastroenterology. 1975 Dec;69(6):1238–1245. [PubMed] [Google Scholar]
  8. Jacks T. M., Wu B. J. Biochemical properties of Escherichia coli low-molecular-weight, heat-stable enterotoxin. Infect Immun. 1974 Feb;9(2):342–347. doi: 10.1128/iai.9.2.342-347.1974. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Jacks T. M., Wu B. J., Braemer A. C., Bidlack D. E. Properties of the enterotoxic component in Escherichia coli enteropathogenic for swine. Infect Immun. 1973 Feb;7(2):178–189. doi: 10.1128/iai.7.2.178-189.1973. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Koupal L. R., Deibel R. H. Assay, characterization, and localization of an enterotoxin produced by Salmonella. Infect Immun. 1975 Jan;11(1):14–22. doi: 10.1128/iai.11.1.14-22.1975. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Neidhardt F. C., Bloch P. L., Smith D. F. Culture medium for enterobacteria. J Bacteriol. 1974 Sep;119(3):736–747. doi: 10.1128/jb.119.3.736-747.1974. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Punyashthiti K., Finkelstein R. A. Enteropathogenicity of Escherichia coli. I. Evaluation of mouse intestinal loops. Infect Immun. 1971 Oct;4(4):473–478. doi: 10.1128/iai.4.4.473-478.1971. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Sandefur P. D., Peterson J. W. Isolation of skin permeability factors from culture filtrates of Salmonella typhimurium. Infect Immun. 1976 Sep;14(3):671–679. doi: 10.1128/iai.14.3.671-679.1976. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Sandefur P. D., Peterson J. W. Neutralization of Salmonella toxin-induced elongation of Chinese hamster ovary cells by cholera antitoxin. Infect Immun. 1977 Mar;15(3):988–992. doi: 10.1128/iai.15.3.988-992.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Sedlock D. M., Deibel R. H. Detection of Salmonella enterotoxin using rabbit ileal loops. Can J Microbiol. 1978 Mar;24(3):268–273. doi: 10.1139/m78-046. [DOI] [PubMed] [Google Scholar]
  16. Smith H. W., Gyles C. L. The effect of cell-free fluids prepared from cultures of human and animal enteropathogenic strains of Escherichia coli on ligated intestinal segments of rabbits and pigs. J Med Microbiol. 1970 Aug;3(3):403–409. doi: 10.1099/00222615-3-3-403. [DOI] [PubMed] [Google Scholar]

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